What is the main function of a hypervisor?

It is used by ISPs to monitor cloud computing resources.

• This option is incorrect. Hypervisors are not specifically used by Internet Service Providers (ISPs) to monitor cloud computing resources. ISPs may use various tools for monitoring and managing their network infrastructure, but hypervisors are primarily used in server environments for virtualization purposes, not for monitoring by ISPs.

It is a device that synchronizes a group of sensors.

• This is also incorrect. A hypervisor is not a device for synchronizing sensors. Devices used for synchronizing sensors are typically part of an embedded system or Internet of Things (IoT) architecture, and they focus on coordinating inputs and outputs from various sensor arrays, which is different from the function of a hypervisor.

It is software used to coordinate and prepare data for analysis.

• This option is not accurate. While hypervisors do manage resources and can be involved in systems that prepare data for analysis, their primary role is not data coordination or preparation. They are more about resource allocation and management for virtual machines rather than data processing or analytical tasks.

It is a device that filters and checks security credentials.

• This is incorrect. Hypervisors are not devices used for filtering and checking security credentials. Security appliances or software like firewalls, intrusion detection systems, and identity management solutions are typically responsible for security-related tasks like filtering and credential checking.

It is used to create and manage multiple VM instances on a host machine.

• This is the correct answer. A hypervisor, also known as a virtual machine monitor (VMM), is software, firmware, or hardware that creates and manages virtual machines. It allows multiple operating systems to run on a single physical machine by abstracting the hardware and dividing it into distinct environments known as virtual machines. Each VM operates independently and is isolated from the others, providing an efficient way to utilize hardware resources and ensure security between different computing environments.